John Chitty, BVetMed CeertZooMed CBiol MSB MRCVS, Anton Vets, Unit 11, Anton Mill Road, Andover, Hampshire SP10 2NJ, UK
Deborah Monks, BVSc (Hons) CertZooMed, FACVSc (Avian Health) DipECZM, Brisbane Birds and Exotics Veterinary Service, 191 Cornwall Street, Greenslopes, Queensland 4120, Australia